add syslog

src/fgai/syslog_server.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+import socket
+from pathlib import Path
+
+
+def listen_udp_syslog(host: str, port: int, output: str, *, max_bytes: int = 65535) -> None:
+    output_path = Path(output)
+    output_path.parent.mkdir(parents=True, exist_ok=True)
+
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    sock.bind((host, port))
+
+    print(f"Listening for UDP syslog on {host}:{port}")
+    print(f"Writing logs to {output_path}")
+    with output_path.open("a", encoding="utf-8", buffering=1) as handle:
+        while True:
+            data, address = sock.recvfrom(max_bytes)
+            message = data.decode("utf-8", errors="replace").strip()
+            if not message:
+                continue
+            handle.write(f"{message}\n")
+            print(f"{address[0]}:{address[1]} {message}")